TIRYMYNACH (TIR-Y-MYNEICH), a hamlet, in the parish of GUILSFIELD, hundred of POOL, county of MONTGOMERY, NORTH WALES, 5 miles (E.) from Welshpool: the population is included in the return for the parish. The name implies "the Monks' Ground," and is derived from the circumstance of the hamlet having at one time ormed a part of the possessions of the abbey of Strata Mar-cells, in the neighbouring parish of Welshpool. A 'portion, amounting to about five hundred acres, is tithe-free; the tithes of the remainder have been commuted for a rent-charge of £163, of which £121. 10. are payable to the Dean and Chapter of Christ Church, Oxford, and £41.10. to the vicar of Guilsfteld. The surrounding country is well cultivated, and productive.